Rotary engines (also known as Wankel engines and Wankel rotary engines) are quite different from piston or "reciprocating" engines. One of the distinguishing features is that they don't need valves to ...

Four-stroke engines, which make up 99% of vehicles on the road, rely on a system for managing air intake, compression, ...

That alone reduces emissions and increases engine longevity. The rotary valve also means that the blockages caused by conventional poppet valves are not an issue as poppet valves are not needed in ...

In a world dominated by pistons, the rotary engine was something different for motorists. It was the vision of German engineer Felix Wankel, built on the belief that the up-and-down motion of pistons ...

In this video, we explore the RevForce engine from Alpha Otto Technologies, a breakthrough in two-stroke engine design. We ...

WEST LAFAYETTE, Ind. — Researchers in Purdue University’s College of Engineering are testing a patented Tesla valve-inspired injection manifold design that could improve the performance of rotating ...

A report from TopSpeed has us musing about the future of the motorcycle community when it comes to rotary-powered engines – or if there’s even a potential for a resurgence in the cards at all. There ...

Researchers at Purdue University's College of Engineering are conducting tests on a patented Tesla valve-inspired injection manifold design to improve the efficiency of rotating detonation engines ...